JP2004262537A - Aseptic filling/packaging method, and rolled product of bag - Google Patents

Aseptic filling/packaging method, and rolled product of bag Download PDF

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JP2004262537A
JP2004262537A JP2003056913A JP2003056913A JP2004262537A JP 2004262537 A JP2004262537 A JP 2004262537A JP 2003056913 A JP2003056913 A JP 2003056913A JP 2003056913 A JP2003056913 A JP 2003056913A JP 2004262537 A JP2004262537 A JP 2004262537A
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bag
sealed
bags
shaped connecting
cut
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Japanese (ja)
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Shinichi Hiramoto
眞一 平本
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Toyo Jidoki Co Ltd
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Toyo Jidoki Co Ltd
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Abstract

<P>PROBLEM TO BE SOLVED: To form a bag port in a sealed bag without producing cut wastes and perform an aseptic filling/packaging work. <P>SOLUTION: A rolled product of band-like consecutive members 8 having a series of bags W<SB>0</SB>with circumferential sealed and closed edges is unwound, fed into an aseptic chamber 3. A lower section (a cutting part 14) of an upper edge seal part Wa of either one surface film or both surface films in each of the bags W<SB>0</SB>is cut to form a bag port and subsequently a boundary 16 between each of the bags is cut and the bags are separated into individual bags W having the circumferential edges sealed. The bag W is transmitted to a filling/packaging device 2, the bag ports are opened to fill some filled products in the bag, the bag ports are sealed and then the filled bags are discharged out of the aseptic chamber through a discharging part 23. <P>COPYRIGHT: (C)2004,JPO&NCIPI

Description

【0001】
【発明の属する技術分野】
本発明は、無菌室内において食品等を無菌状態とされた袋に充填し、続いて袋口のシールを行う無菌充填包装方法、及びその方法に用いるのに適する袋のロール体に関する。
【0002】
【従来の技術】
食品等の保存安定性を高める方法の1つとして、無菌室内において食品等を無菌状態とされた袋に充填し、続いて袋口のシールを行う無菌充填包装方法が知られている。
例えば下記特許文献1には、内部が殺菌され周囲が密閉された袋が連なる原反ロールを巻き戻し、外部を殺菌したのち個々の袋に分離し、続いてこの袋を充填装置に送り、上端を切断して袋口を形成し、該袋口を開口し、袋内に被充填物を充填した後、袋口をシールする無菌充填包装方法が記載されている。
しかし、この方法では、切り屑が大量に発生するという問題がある。切り屑を無菌室内から排出するにはそのための専用の装置を無菌室内に設置する必要があり、これがコストアップに繋がり、充填装置周辺部の構造を複雑化させ、さらに清掃性やメンテナンス性を低下させる。また、薄く柔軟な切り屑は取り扱いが難しく、落下したものが袋内に入り込んで不良袋の発生の原因となったり、充填装置に引っ掛かって生産性に悪影響を及ぼすこともある。
下記特許文献2では、当初から個々に分離した袋を用いているが、やはり無菌室内で袋口を切断するため、切り屑が大量に発生する。
【0003】
下記特許文献3では、1個の袋を中央部で切断して2個の袋に分離し、続いて分離後の袋を同時に充填装置に送っている。この方法では切り屑が発生することはないが、このように袋の中央部で切断して左右に並んだ2個の袋を同時に得る場合、切断後に得られた2個の袋の袋口が互いに逆方向を向くため、これを充填装置のグリッパーに送る際にひねりを加えて両方の袋の向きを揃える必要がある。そのため、給袋装置の構造の複雑化が避けられず、それに伴い給袋装置及びその周辺の清掃性やメンテナンス性が低下する。
下記特許文献4では、原反ロールから巻き戻された袋を帯状に連なったままで中央部で切断して2つに分離し、続いて切り口(袋口)を上に向け、袋内に充填し、袋口をシールしたのちに個々の袋に分離している。これも前記特許文献3と同様に、1個の袋をその中央部で切断して左右に並んだ2個の袋を同時に得るもので、切り屑が発生しない利点があるが、被充填物がきわめて軽量で薄いもの以外のときは、帯状に連なった袋の支持が難しく、かつ充填後の袋にシワが入りやすいという問題がある。
【0004】
【特許文献1】
特公平4−51411号公報
【特許文献2】
特開平7−10111号公報
【特許文献3】
特開2001−2029号公報
【特許文献4】
特開昭62−34613号公報
【0005】
【発明が解決しようとする課題】
本発明は、このような従来の無菌充填包装方法の問題点に鑑みてなされたもので、袋を中央部において切断して2個の袋に分離するという方法以外の方法により、切り屑を発生させることなく密閉された袋に袋口を形成し、無菌充填包装を行うことを目的とする。
【0006】
【課題を解決するための手段】
本発明に係る無菌充填包装方法は、周縁部がシールされて密閉された袋が同方向を向いて一列に連なる帯状連接体をロール状に巻いたものを巻き戻して無菌室に導入し、各袋間の境界を切断して周縁部がシールされた個々の袋に分離すると同時に又はその前後に、各袋の一方の面のフィルムの上縁シール部の下部を切断して袋口とし、その後前記袋口を開口して袋の内部に被充填物を充填し、前記袋口をシールすることを特徴とする。この場合、袋口を形成するとき、袋の他方の面のフィルムは切断されないので、切り屑がでることはない。
【0007】
あるいは、本発明に係る無菌充填包装方法は、周縁部がシールされて密閉された袋が同方向を向いて一列に連なる帯状連接体をロール状に巻いたものを巻き戻して無菌室に導入し、各袋間の境界を切断して周縁部がシールされた個々の袋に分離すると同時に又はその前後に、各袋の両方の面のフィルムの上縁シール部の下部を、両側縁に未切断部を残した状態で切断して袋口とし、その後前記袋口を開口して袋の内部に被充填物を充填し、前記袋口をシールすることを特徴とする。この場合も、袋口を形成するとき、フィルムの両側縁に未切断部を残すので、切り屑がでることはない。
いずれの場合も、前記帯状連接体を構成する各袋は、袋口及び袋底が前記帯状連接体の幅方向両側に位置するように連なっていても、前記帯状連接体の長さ方向前後に位置するように連なっていてもよい。
【0008】
上記方法を袋底がガセット折りされた自立袋に適用する場合、次のようなロール体が好適に利用できる。袋底がガセット折りされかつ周縁部がシールされて密閉された自立袋が同方向を向いて一列に連なる帯状連接体がロール状に巻かれ、各自立袋の袋口及び袋底は前記帯状連接体の幅方向両側に位置し、前記帯状連接体の袋口側にスぺーサーが前記帯状連接体とともに巻かれているロール体。
自立袋では袋底の厚みが袋口側の約2倍になるため、スペーサーなしの場合、ロール体の径が軸方向に大きく違ってきて、きれいに巻けないが、スペーサーを介在させることによりロール体の径を袋底側と袋口側でほぼ同じとすることができる。スペーサーは巻き戻しのとき回収すればよい。
【0009】
また、本発明に係る別の無菌充填包装方法は、両側縁部が長さ方向に沿ってシールされかつ等間隔に横方向シール部が形成され、密閉された袋が一列に連なる形となった帯状連接体をロール状に巻いたものを巻き戻し、無菌室に導入した後、前記横方向シール部の後方側近傍を切断して個々の袋に分離し、その切断部位を該切断部位より後方側の袋の袋口とし、この袋口を開口して袋の内部に被充填物を充填し、前記袋口をシールすることを特徴とする。この場合、前記帯状連接体を構成する各袋は、巻き戻されるとき袋口側を前方に向けて送り出されることになる。
【0010】
【発明の実施の形態】
以下、図1〜図12を参照して、本発明について具体的に説明する。
図1は、本発明を実施する無菌充填包装装置の概念図である。給袋装置1の大部分と充填包装装置2の全部が無菌室3内に配置され、無菌室3内には無菌空気供給機4からの加圧エアがパイプ5を通して供給され、大気圧よりやや高い気圧に維持されている。
【0011】
給袋装置1において、ロール体6が無菌室3外に設置されて巻き戻され、多数のガイドローラ7に案内されて前方に送られ、無菌室3に入る。ロール体6は、周縁部がシールされて密閉された袋(プレパウチ)Wが一列に連なる帯状連接体8がロール状に巻かれたもので、帯状連接体8内において各袋Wは同方向を向き、この例では、袋口及び袋底が帯状連接体8の幅方向に向いた状態で互いに連接している。帯状連接体8を構成する各袋Wは内部が殺菌され、かつ密閉されているので、内部の無菌状態が維持されている。
無菌室3の入り口には殺菌液が入った殺菌槽9が設置され、帯状連接体8は殺菌槽9をくぐり抜けて無菌室に入り、さらに同様の殺菌槽11内をくぐり、外面の殺菌が行われる。
【0012】
外面が殺菌された帯状連接体8は、間欠回転するフィードローラ12により間欠的に引き込まれて袋口切断位置Aに達し、この袋口切断位置Aにおいて、図2に示すように、各袋Wの一方の面のフィルムの上縁シール部Waの下部が、両側縁に未切断部13を残した状態で切断される。この切断部14が袋口となる。前記一方の面のフィルムの切断部14より上方部分は未切断部13及び上縁シール部Waを介して他方の面のフィルムと袋Wとつながっているので、切り屑はでない。なお、この場合、切断部14の左右(袋Wの両側縁)に未切断部13を残すのは必須ではない。
続いて、帯状連接体8の先頭の袋Wが袋分離位置Bに到達して停止すると、カッター15が作動して、先頭の袋と次の袋の境界16(図2参照)を切断し、先頭の袋W(分離後の袋にWの符号を付ける)を帯状連接体8の先から分離する。分離された袋Wは周縁部(上縁、両側縁、底縁)がシールされた状態であり、上縁シール部Waの下に前記袋口が形成されている。
【0013】
帯状連接体8から分離された袋Wは、袋分離位置Bにおいて給袋装置の吸盤16により吸着されて持ち上げられ、続いて上縁を把持部材17により把持され、充填包装装置2のグリッパー18に供給される。この給袋装置としては、公知の製袋充填包装機用のものが使用できる。
充填包装装置2は、それ自体公知の間欠回転テーブル式充填包装装置であり、停止位置Iにおいて給袋装置から袋Wの供給を受け、グリッパー18により袋Wの両縁部を把持した後、袋Wに対する包装操作をテーブルの間欠回転に伴って順次行うようになっている。なお、停止位置IIでは袋口の開口、停止位置IVでは充填ノズル19による充填、停止位置VIでは熱板21によるシール、停止位置VIIでは冷却板22によるシール部の冷却が行われ、停止位置VIIIではグリッパー18が開き、充填及びシール済みの袋Wが排出部23を通って無菌室3から排出され、製品コンベア24に落下し、搬出される。
【0014】
図3は、袋口切断位置Aにおいてカッター受け台25上に停止した袋Wの一方の面(上方側)のフィルムFaを切断して、切断部14を形成するカッター装置26を示す。カッター装置26は、切断部14を形成するに必要な幅を有するカッター27、それを固定した取付部材28、取付部材28を昇降させるエアシリンダ29、取付部材28が下降したときその当接部28aの下端が当接するストッパー31からなる。ストッパー31によりカッター27の下降端が位置決めされる。この例では、カッター27の下降端は、その刃先がフィルムFaを切断(貫通)し、下方側のフィルムFbに少し切り込んだところで停止するように設定されている。袋口切断位置Aにおいて、袋Wがカッター受け台25上に停止したとき、エアシリンダ29が作動してカッター27が仮想線位置から実線位置に下降し、袋WのフィルムFaを切断する。
【0015】
図4に袋Wの袋口を開口したときの様子を示す。一対のグリッパー18に両縁を把持された袋Wは、充填包装装置2の停止位置IIにおいて、通常の袋の開口操作と同じく、両面から吸盤(図示せず)で吸着され、開口される。なお、この袋Wの周囲は上縁シール部Wa、両側縁シール部Wb,Wc及び、底縁シール部Wdを有し、上縁シール部Waの下部に形成された切断部14が袋口32として開口し、この袋口32から被充填物が充填される。
【0016】
図5に充填後の袋Wの袋口32をシールしたときの状態を示す。一対のグリッパー18に両縁を把持された袋は、充填包装装置2の停止位置VIにおいて、両面を熱板21により挟持されて熱シールされる。この例では、斜線にて示す熱シール部33が切断部14の少し下部から袋の上端まで形成されている。また、図6に示す例では、熱シール部34が切断部14の下部にのみ形成されている。いずれにしても、切断部14より下方位置を熱板21で挟持して熱シールすれば袋口32がシールされるが、切断部14を含めて熱シールすることが望ましい。
【0017】
なお、以上述べた例では、袋を帯状連接体から切り離す前に、当該袋の一方の面のフィルムの上縁シール部の下部を切断して袋口としたが、この切断は袋を帯状連接体から切り離すと同時に行ってもよく、切り離した後に行ってもよい。また、切り離した後に行う場合、充填包装装置2に送る前に行ってもよいし、充填包装装置2に送った後、袋口開口前に行ってもよい。
【0018】
図7に別のカッター装置35を示す。このカッター装置35は、図示しないフレームに固定された支点軸36と、軸受37を介して前記支点軸36に回転自在に支持されたカッターローラ38からなる。カッターローラ38は、袋口切断位置Aにおいてカッター受け台25上に配置され、刃先が上方側のフィルムFaを切断(貫通)し、下方側のフィルムFbに少し切り込んだ位置に設定され、袋Wの移動に伴って回転しフィルムFaを切断する。この場合は、カッター装置26と異なり、切断部は袋Wの全幅にわたって形成される。
【0019】
図8にさらに別のカッター装置39を示す。このカッター装置39は、袋Wの幅方向に沿って往復動し得る往復動部材41と、往復動部材41に固定された軸42に回転自在に支持され、かつ圧縮ばね43により付勢された揺動部材44と、揺動部材44の先端に固定されたカッター45と、往復動部材41の下端に取り付けられて袋Wの上に乗るローラ46と、揺動部材44に当接してカッター45の下端位置を規定するストッパーねじ47からなる。カッター45の刃先は上方側のフィルムFaを切断(貫通)し、下方側のフィルムFbに少し切り込んだ位置に設定される。往復動部材41はカッター受け台25上に配置され、袋Wが前進するとき共に同距離移動(往動)し、袋Wが停止したときカッター受け台25上の袋Wの上を逆方向に移動(復動)し、このときフィルムFaを切断する。この場合も、切断部は袋Wの全幅にわたって形成される。
【0020】
図9は、両方の面のフィルムFa,Fbが切断された袋Wの例を示す。袋Wは両側縁に未切断部47を残した状態で切断され、切断部48がこの袋Wの袋口となる。未切断部47があるため、切断部48より上方部分は未切断部47を介して袋Wとつながっており、切り屑はでない。
この袋Wの袋口を開口する場合、一方の面に対しては切断部48より下方位置に進退自在な吸盤49を設け、他方の面に対しては切断部48より上方位置と下方位置の両方に進退自在な吸盤51,52を設け、袋Wの両面を吸着し、袋口を開口する。吸盤52は袋Wの上縁シール部Waに吸着する。各吸盤49,51,52はそれぞれ図示しないフィルタ、切換弁等を介して真空源に連通している。なお、この例では、吸盤52に対向する押さえ板53を設け、吸盤52の吸着を助けている。
この袋Wに対するシールは、図5,6に示したように行えばよい。
【0021】
図10、11は、上記方法に袋底がガセット折りされた自立袋を適用する場合に使用されるロール体の斜視図及び断面図である。個々の自立袋Sは、上縁シール部Sa,両側縁シール部Sb,Sc及び底縁シール部Sdにより密閉され、両側縁において隣接する自立袋につながり、一列に連なって帯状連接体55を構成している。また、各自立袋Sは同じ方向を向き、かつ袋口(上縁シール部Sa側)及び袋底(底縁シール部Sd側)は帯状連接体55の幅方向両側を向いている。
ロール体56は、紙管57の周りに帯状連接体55とスペーサー58を重ねてロール状に共巻きしたものであり、前記スペーサー58は帯状連接体55の袋口側に配置されている。
【0022】
自立袋では袋底側の厚みは他の箇所の2倍(フィルム4枚)になっており、スペーサー58がなければ、ロール体56の径が袋底側と袋口側で大きく違ってくるが、スペーサー58を介在させることにより、ロール体56の径を幅方向にほぼ均等にすることができる。スペーサー58はプラスチックフィルムや紙を用いることができる。スペーサー58は自立袋Sの袋底側の厚みと他の箇所の厚みの差を埋めるものであり、フィルムの厚みの約2倍に設定すればよい。その幅は自立袋Sの高さ(ロール体56の幅)の5〜40%程度に設定すればよい。
【0023】
図12は、両側縁部が長さ方向に沿ってシールされかつ等間隔に横方向シール部が形成された帯状連接体を用いる無菌充填包装方法を説明するものである。
帯状連接体61は、両側縁のシール部62と横方向シール部63により密閉され、内部は無菌状態が維持されている。図1を用いて説明したと同様に、帯状連接体61はロール状に巻かれたものが巻き戻され、無菌室の入り口及び無菌室内で外面を殺菌され、前方に間欠的に送られ横方向に切断されて個々の袋Tに切り離され、続いて袋Tは充填包装装置に送られ、袋口の開口、被充填物の充填、及び袋口シール等の包装操作を受けた後、無菌室から排出される。
【0024】
帯状連接体61の切断に際しては、図12に示すように、横方向シール部63の後方側近傍を横に切断して個々の袋Tに分離する。分離された袋Tは切断部64を除く周縁部(両側縁、底縁)がシールされた状態であり、切断部64が該切断部64の後方側の袋Tの袋口となり、袋Tは袋口を前方に向けて送り出されることになる。分離後の袋Tの横方向シール部63の下の非シール部65は、シール装置によりシールすることもできる。
帯状連接体61に対する1回目の切断(切断部64a)により先端に切り屑66ができるが、以後の切断により切り屑がでることはない。また、1回目の切断を切断部64bから始めることとし、1個目の袋T(T1)については充填包装装置に供給したうえで不良袋(袋口が密閉された袋)として充填等の操作を行わないようにし、排出すれば、切り屑を出さないで済む。
【0025】
【発明の効果】
本発明によれば、切り屑を発生させることなく密閉された袋に袋口を形成し、無菌充填包装を行うことができ、袋を中央部において切断して2個の袋に分離するという従来の方法(切り屑を発生させない方法)に伴う不利益を回避することができる。
【図面の簡単な説明】
【図1】無菌充填包装装置の概念図である。
【図2】帯状連接体の平面図である。
【図3】袋口を形成するカッター装置の側面図である。
【図4】袋口を開口した袋の斜視図である。
【図5】切断部と充填後のシール位置を示す袋の正面図である。
【図6】切断部と充填後のシール位置を示す袋の正面図である。
【図7】袋口を形成する別のカッター装置の側面図である。
【図8】袋口を形成するさらに別のカッター装置の側面図である。
【図9】袋口の開口方法を説明する開口前(a)及び開口後(b)の側面図である。
【図10】自立袋の帯状連接体を巻いたロール体の斜視図である。
【図11】そのロール体の断面図である。
【図12】帯状連接体の平面図である。
【符号の説明】
3 無菌室
6 ロール体
8 帯状連接体
13 未切断部
14 切断部
16 袋同士の境界
A 袋口切断位置
B 袋分離位置
分離前の袋
W 分離後の袋
[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to an aseptic filling and packaging method for filling foods and the like in an aseptic bag in a sterile room and subsequently sealing the bag mouth, and a bag roll suitable for use in the method.
[0002]
[Prior art]
As one method of improving the storage stability of foods and the like, a sterile filling and packaging method is known in which foods and the like are filled in a sterilized bag in a sterile room, and the bag mouth is subsequently sealed.
For example, in Patent Literature 1 below, a raw fabric roll in which a bag whose inside is sterilized and whose periphery is sealed is rewound, the outside is sterilized, and the bag is separated into individual bags. Is formed, the bag mouth is formed, the bag mouth is opened, the bag is filled with an object to be filled, and then the bag mouth is sealed.
However, this method has a problem that a large amount of chips is generated. In order to discharge chips from the sterile room, it is necessary to install a dedicated device for that purpose in the sterile room, which leads to an increase in cost, complicates the structure around the filling device, and further reduces cleaning and maintenance. Let it. Further, thin and soft chips are difficult to handle, and fallen pieces may enter the bag and cause a defective bag, or may be caught by the filling device and adversely affect productivity.
In Patent Literature 2 below, individually separated bags are used from the beginning. However, since the bag mouth is cut in a sterile room, a large amount of chips is generated.
[0003]
In Patent Literature 3 below, one bag is cut at the center and separated into two bags, and then the separated bags are simultaneously sent to a filling device. Although no chips are generated by this method, when the two bags arranged side by side are obtained at the same time by cutting at the center of the bag in this way, the bag mouths of the two bags obtained after the cutting are closed. Since they face in opposite directions, it is necessary to twist both bags in order to feed them to the gripper of the filling device. For this reason, the structure of the bag feeding device is inevitably complicated, and accordingly, the cleanability and maintenance of the bag feeding device and its surroundings are reduced.
In Patent Literature 4 below, a bag unwound from a raw roll is cut into two pieces by cutting in a central portion while being continuously connected in a belt shape, and then the cut end (bag opening) is directed upward to fill the bag. After sealing the bag mouth, it is separated into individual bags. This is also similar to Patent Document 3 in that one bag is cut at the center thereof to obtain two bags arranged side by side at the same time, and there is an advantage that chips are not generated, but the material to be filled is When it is not very light and thin, there is a problem that it is difficult to support a band-shaped bag and that the bag after filling is easily wrinkled.
[0004]
[Patent Document 1]
Japanese Patent Publication No. 4-51411 [Patent Document 2]
JP-A-7-10111 [Patent Document 3]
JP 2001-2029 A [Patent Document 4]
JP-A-62-34613 [0005]
[Problems to be solved by the invention]
The present invention has been made in view of the problems of the conventional aseptic filling and packaging method, and generates chips by a method other than cutting the bag at the center and separating the bag into two bags. An object of the present invention is to form a bag mouth in a sealed bag without assembling and to perform aseptic filling and packaging.
[0006]
[Means for Solving the Problems]
In the aseptic filling and packaging method according to the present invention, the peripheral portion is sealed, and the sealed bag is wound in a roll shape around a band-shaped connecting body in a row facing the same direction. At the same time as before or after the boundary between the bags is cut to separate individual bags whose peripheral edge is sealed, the lower part of the upper edge seal portion of the film on one side of each bag is cut into a bag mouth, and thereafter, The bag mouth is opened to fill the inside of the bag with the filling material, and the bag mouth is sealed. In this case, when the bag mouth is formed, the film on the other surface of the bag is not cut, so that no chips are generated.
[0007]
Alternatively, in the aseptic filling and packaging method according to the present invention, the peripheral part is sealed, and the sealed bag is wound in a roll shape with the band-shaped connecting bodies in a row facing in the same direction and introduced into the aseptic chamber. At the same time or before and after cutting the boundary between each bag and separating into individual bags whose peripheral edge is sealed, the lower part of the upper edge seal portion of the film on both sides of each bag is not cut to both side edges The bag mouth is cut with the portion left, and thereafter, the bag mouth is opened to fill the inside of the bag with an object to be filled, and the bag mouth is sealed. Also in this case, when forming the bag mouth, uncut portions are left on both side edges of the film, so that no chips are generated.
In any case, even if each bag constituting the band-shaped connecting body is connected so that a bag mouth and a bag bottom are located on both sides in the width direction of the band-shaped connecting body, the bags are arranged longitudinally around the length of the band-shaped connecting body. They may be connected so as to be located.
[0008]
When the above method is applied to a self-standing bag in which the bag bottom is gusset-folded, the following roll body can be suitably used. A self-standing bag whose bottom is gusset-folded and whose peripheral edge is sealed and hermetically sealed is oriented in the same direction. A roll body, which is located on both sides in the width direction of the body and has a spacer wound on the bag mouth side of the strip-shaped connection body together with the strip-shaped connection body.
In the case of a self-standing bag, the thickness of the bag bottom is about twice that of the bag mouth, so if there is no spacer, the diameter of the roll body will vary greatly in the axial direction and it will not roll well. Can be made substantially the same on the bag bottom side and the bag mouth side. The spacer may be collected at the time of rewinding.
[0009]
Further, in another aseptic filling and packaging method according to the present invention, both side edges are sealed along the length direction and horizontal sealing portions are formed at equal intervals, so that the sealed bags are arranged in a line. After unwinding the band-shaped connecting body wound in a roll shape and introducing it into the aseptic chamber, the vicinity of the rear side of the lateral seal portion is cut and separated into individual bags, and the cut portion is located behind the cut portion. The bag mouth of the bag on the side is opened, the bag mouth is opened, the inside of the bag is filled with an object to be filled, and the bag mouth is sealed. In this case, each bag constituting the band-shaped connecting body is sent out with the bag mouth side forward when rewinding.
[0010]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, the present invention will be specifically described with reference to FIGS.
FIG. 1 is a conceptual diagram of an aseptic filling and packaging apparatus for implementing the present invention. Most of the bag supply device 1 and all of the filling and packaging device 2 are arranged in the aseptic chamber 3, and pressurized air from the aseptic air supply device 4 is supplied to the aseptic chamber 3 through the pipe 5. It is maintained at a high pressure.
[0011]
In the bag supply device 1, the roll body 6 is installed outside the sterile room 3, unwound, guided by a number of guide rollers 7, sent forward, and enters the sterile room 3. The roll body 6 is formed by winding a band-shaped connecting body 8 in which bags (pre-pouches) W 0 whose peripheral edges are sealed and sealed are arranged in a row, and each bag W 0 is the same in the band-shaped connecting body 8. In this example, the bag mouth and the bag bottom are connected to each other in a state where the bag mouth and the bag bottom face the width direction of the band-shaped connecting body 8. Each bag W 0 that constitutes the strip connecting body 8 inside is sterilized, and because it is sealed, the interior of the sterility is maintained.
At the entrance of the sterile chamber 3, a sterilizing tank 9 containing a sterilizing solution is installed. Is
[0012]
The belt-shaped connecting body 8 whose outer surface is sterilized is intermittently drawn by the intermittently rotating feed roller 12 and reaches the bag mouth cutting position A. At the bag mouth cutting position A, as shown in FIG. The lower portion of the upper edge seal portion Wa of the film on one side of the film 0 is cut with the uncut portions 13 left on both side edges. The cut portion 14 serves as a bag mouth. Since the upper portion than the cut portion 14 of the film of the one surface is connected to the film and the bag W 0 of the other surface through the uncut portion 13 and the upper seal portion Wa, does not the chip. In this case, it is not essential to leave uncut portions 13 on the left and right (side edges of the bag W 0) of the cutting portion 14.
Subsequently, the bags W 0 of the beginning of the strip-shaped connecting body 8 is stopped reaches the bag separation position B, and the cutter 15 is actuated to cut the top of the bag and the boundary of the next bag 16 (see FIG. 2) Then, the leading bag W (the separated bag is denoted by the letter W) is separated from the end of the strip-shaped connecting member 8. The separated bag W is in a state where the peripheral edges (upper edge, both side edges, bottom edge) are sealed, and the bag mouth is formed below the upper edge seal portion Wa.
[0013]
The bag W separated from the band-shaped connecting body 8 is sucked and lifted by the suction cup 16 of the bag supply device at the bag separation position B, and subsequently the upper edge is gripped by the gripping member 17 to be gripped by the gripper 18 of the filling and packaging device 2. Supplied. As the bag supply device, a known device for a bag making and filling machine can be used.
The filling and packaging apparatus 2 is an intermittent rotary table type filling and packaging apparatus known per se, receives the supply of the bags W from the bag supply device at the stop position I, and grips both edges of the bags W with the gripper 18. The packaging operation for W is sequentially performed with the intermittent rotation of the table. At the stop position II, the opening of the bag mouth is opened, at the stop position IV, the filling by the filling nozzle 19 is performed, at the stop position VI, the sealing by the hot plate 21 is performed, and at the stop position VII, the sealing portion is cooled by the cooling plate 22, and the stop position VIII is performed. Then, the gripper 18 is opened, the filled and sealed bag W is discharged from the aseptic chamber 3 through the discharge part 23, dropped onto the product conveyor 24, and carried out.
[0014]
FIG. 3 shows a cutter device 26 that cuts the film Fa on one surface (upper side) of the bag W 0 stopped on the cutter receiving table 25 at the bag mouth cutting position A to form the cut portion 14. The cutter device 26 includes a cutter 27 having a width necessary to form the cutting portion 14, a mounting member 28 to which the cutter 27 is fixed, an air cylinder 29 for moving the mounting member 28 up and down, and a contact portion 28a when the mounting member 28 is lowered. Comprises a stopper 31 with which the lower end thereof abuts. The lower end of the cutter 27 is positioned by the stopper 31. In this example, the lower end of the cutter 27 is set so that its cutting edge cuts (penetrates) the film Fa and stops when the cutter slightly cuts into the lower film Fb. In the bag mouth cutting position A, when the bag W 0 is stopped on the cradle 25 cutter descends solid line position the cutter 27 from the phantom line position air cylinder 29 is actuated to cut the film Fa of the bag W 0 .
[0015]
FIG. 4 shows a state where the bag mouth of the bag W is opened. The bag W whose both edges are gripped by the pair of grippers 18 is sucked and opened by suction cups (not shown) from both sides at the stop position II of the filling and packaging apparatus 2 as in the normal bag opening operation. The periphery of the bag W has an upper edge seal portion Wa, both side edge seal portions Wb and Wc, and a bottom edge seal portion Wd, and the cutting portion 14 formed below the upper edge seal portion Wa is formed into a bag mouth 32. The filling object is filled from the bag mouth 32.
[0016]
FIG. 5 shows a state in which the bag mouth 32 of the bag W after filling is sealed. At the stop position VI of the filling and packaging apparatus 2, both sides of the bag whose both edges are gripped by the pair of grippers 18 are heat-sealed while being sandwiched by the hot plates 21. In this example, a heat seal portion 33 indicated by oblique lines is formed from a slightly lower portion of the cutting portion 14 to an upper end of the bag. In the example shown in FIG. 6, the heat seal portion 34 is formed only below the cutting portion 14. In any case, the bag mouth 32 is sealed if the position below the cutting portion 14 is sandwiched by the hot plate 21 and heat sealed, but it is desirable to heat seal the cutting portion 14 as well.
[0017]
In the above-described example, before the bag is separated from the band-shaped connecting body, the lower part of the upper edge seal portion of the film on one side of the bag is cut to form a bag opening. It may be performed at the same time as separation from the body or after separation. In addition, when it is performed after separation, it may be performed before sending to the filling and packaging apparatus 2 or after sending to the filling and packaging apparatus 2 and before opening the bag mouth.
[0018]
FIG. 7 shows another cutter device 35. The cutter device 35 includes a fulcrum shaft 36 fixed to a frame (not shown) and a cutter roller 38 rotatably supported by the fulcrum shaft 36 via a bearing 37. The cutter roller 38 is disposed on the cutter receiving base 25 at the bag mouth cutting position A, and is set at a position where the cutting edge cuts (penetrates) the upper film Fa and slightly cuts into the lower film Fb. It rotates with the movement of 0 and cuts the film Fa. In this case, unlike the cutter device 26, the cutting portion is formed over the entire width of the bags W 0.
[0019]
FIG. 8 shows another cutter device 39. The cutter device 39 includes a reciprocating member 41 which can reciprocate along the width direction of the bag W 0, it is rotatably supported by a shaft 42 fixed to the reciprocating member 41, and is biased by a compression spring 43 and a swing member 44, a cutter 45 fixed to the distal end of the swing member 44, a roller 46 which rides on the attached to the lower end of the reciprocating member 41 bags W 0, in contact with the swing member 44 It comprises a stopper screw 47 for defining the lower end position of the cutter 45. The cutting edge of the cutter 45 is set at a position where the upper film Fa is cut (penetrated) and slightly cut into the lower film Fb. The reciprocating member 41 is disposed on the cutter cradle 25, the distance moved together when the bag W 0 is advanced to (forward), the top of the bag W 0 on the cutter cradle 25 when the bag W 0 is stopped The film Fa moves (returns) in the opposite direction, and at this time, the film Fa is cut. Again, the cutting portion is formed over the entire width of the bags W 0.
[0020]
FIG. 9 shows an example of the bag W from which the films Fa and Fb on both sides have been cut. The bag W is cut in a state where the uncut portions 47 are left on both side edges, and the cut portion 48 becomes a bag mouth of the bag W. Since there is the uncut portion 47, the portion above the cut portion 48 is connected to the bag W via the uncut portion 47, and there is no chip.
When the bag mouth of the bag W is opened, a suction cup 49 is provided on one surface below the cutting portion 48 so as to be able to advance and retreat, and on the other surface, the sucker 49 is positioned above and below the cutting portion 48. Both sides are provided with suction cups 51 and 52 which can move forward and backward, and both sides of the bag W are sucked to open the bag mouth. The suction cup 52 is attracted to the upper edge sealing portion Wa of the bag W. Each of the suction cups 49, 51, and 52 is connected to a vacuum source via a filter, a switching valve, and the like (not shown). In this example, a holding plate 53 facing the suction cup 52 is provided to assist the suction of the suction cup 52.
The sealing for the bag W may be performed as shown in FIGS.
[0021]
10 and 11 are a perspective view and a cross-sectional view of a roll body used when applying a self-standing bag having a gusset-folded bag bottom to the above method. Each self-standing bag S is hermetically sealed by an upper edge seal portion Sa, both side edge seal portions Sb and Sc, and a bottom edge seal portion Sd, and is connected to adjacent self-standing bags at both side edges, forming a strip-shaped connecting body 55 in a row. are doing. In addition, each self-standing bag S faces in the same direction, and the bag mouth (upper edge seal portion Sa side) and the bag bottom (bottom edge seal portion Sd side) face both sides in the width direction of the strip-shaped connecting member 55.
The roll body 56 is formed by superposing a band-shaped connecting body 55 and a spacer 58 around a paper tube 57 and co-winding them in a roll shape. The spacer 58 is disposed on the bag mouth side of the band-shaped connecting body 55.
[0022]
In the self-standing bag, the thickness of the bag bottom side is twice as large as the other parts (four films), and without the spacer 58, the diameter of the roll body 56 is greatly different between the bag bottom side and the bag mouth side. By interposing the spacer 58, the diameter of the roll body 56 can be made substantially uniform in the width direction. As the spacer 58, a plastic film or paper can be used. The spacer 58 fills the difference between the thickness of the self-supporting bag S on the bag bottom side and the thickness of other portions, and may be set to about twice the thickness of the film. The width may be set to about 5 to 40% of the height of the self-standing bag S (the width of the roll body 56).
[0023]
FIG. 12 illustrates an aseptic filling and packaging method using a strip-shaped connecting body in which both side edges are sealed along the length direction and horizontal sealing portions are formed at equal intervals.
The strip-shaped connecting body 61 is hermetically sealed by seal portions 62 on both side edges and a lateral seal portion 63, and the inside is maintained in a sterile state. As described with reference to FIG. 1, the strip-shaped connecting body 61 is wound in a roll shape and unwound, the outer surface is sterilized at the entrance of the aseptic chamber and the aseptic chamber, and is sent intermittently forward and laterally. After being cut into individual bags T, the bags T are sent to a filling and packaging apparatus, and are subjected to packaging operations such as opening of a bag mouth, filling of a material to be filled, and sealing of a bag mouth. Is discharged from
[0024]
At the time of cutting the strip-shaped connecting member 61, as shown in FIG. 12, the vicinity of the rear side of the horizontal sealing portion 63 is cut laterally and separated into individual bags T. The separated bag T is in a state where the peripheral edges (side edges, bottom edge) except for the cutting portion 64 are sealed, and the cutting portion 64 serves as a bag mouth of the bag T on the rear side of the cutting portion 64. It will be sent out with the bag mouth facing forward. The non-seal portion 65 below the lateral seal portion 63 of the separated bag T can be sealed by a sealing device.
Chips 66 are formed at the tip by the first cutting (cutting portion 64a) of the strip-shaped connecting body 61, but no chips are produced by subsequent cutting. In addition, the first cutting is started from the cutting section 64b, and the first bag T (T1) is supplied to a filling and packaging apparatus, and then the operation such as filling is performed as a defective bag (bag with a closed bag opening). If the waste is discharged and discharged, no chips are generated.
[0025]
【The invention's effect】
ADVANTAGE OF THE INVENTION According to this invention, the bag opening can be formed in a sealed bag, without generating chips, and aseptic filling and packaging can be performed, and the bag is cut at the center and separated into two bags. (Method that does not generate chips) can be avoided.
[Brief description of the drawings]
FIG. 1 is a conceptual diagram of an aseptic filling and packaging apparatus.
FIG. 2 is a plan view of a belt-shaped connecting body.
FIG. 3 is a side view of a cutter device for forming a bag mouth.
FIG. 4 is a perspective view of a bag with a bag opening opened.
FIG. 5 is a front view of the bag showing a cutting portion and a sealing position after filling.
FIG. 6 is a front view of the bag showing a cutting portion and a sealing position after filling.
FIG. 7 is a side view of another cutter device for forming a bag mouth.
FIG. 8 is a side view of still another cutter device for forming a bag mouth.
FIG. 9 is a side view before (a) and after opening (b) illustrating a method of opening a bag mouth.
FIG. 10 is a perspective view of a roll body wound around a belt-shaped connecting body of a self-standing bag.
FIG. 11 is a cross-sectional view of the roll body.
FIG. 12 is a plan view of a belt-shaped connecting body.
[Explanation of symbols]
Reference Signs List 3 sterile room 6 roll body 8 strip-shaped connecting body 13 uncut portion 14 cutting portion 16 boundary between bags A bag mouth cutting position B bag separation position W 0 bag before separation W bag after separation

Claims (4)

周縁部がシールされて密閉された袋が同方向を向いて一列に連なる帯状連接体をロール状に巻いたものを巻き戻して無菌室に導入し、各袋間の境界を切断して周縁部がシールされた個々の袋に分離すると同時に又はその前後に、各袋の一方の面のフィルムの上縁シール部の下部を切断して袋口とし、その後前記袋口を開口して袋の内部に被充填物を充填し、前記袋口をシールすることを特徴とする無菌充填包装方法。The peripheral part is sealed, and the sealed bag is wound in a roll shape and the band-shaped connecting body is connected in a row in the same direction. At the same time or before and after separating into individual sealed bags, the lower part of the upper edge seal portion of the film on one side of each bag is cut into a bag mouth, and then the bag mouth is opened to open the inside of the bag. A filling method, and sealing the bag opening. 周縁部がシールされて密閉された袋が同方向を向いて一列に連なる帯状連接体をロール状に巻いたものを巻き戻して無菌室に導入し、各袋間の境界を切断して周縁部がシールされた個々の袋に分離すると同時に又はその前後に、各袋の両方の面のフィルムの上縁シール部の下部を、両側縁に未切断部を残した状態で切断して袋口とし、その後前記袋口を開口して袋の内部に被充填物を充填し、前記袋口をシールすることを特徴とする無菌充填包装方法。The peripheral part is sealed, and the sealed bag is wound in a roll shape and the band-shaped connecting body is connected in a row in the same direction. At the same time or before and after separating into individual sealed bags, the lower part of the upper edge seal portion of the film on both sides of each bag is cut with the uncut portions left on both side edges to form a bag mouth. Then, the bag mouth is opened, the inside of the bag is filled with the material to be filled, and the bag mouth is sealed. 両側縁部が長さ方向に沿ってシールされかつ等間隔で横方向シール部が形成され、密閉された袋が一列に連なる形となった帯状連接体をロール状に巻いたものを巻き戻し、無菌室に導入した後、前記横方向シール部の後方側近傍を切断して個々の袋に分離し、その切断部位を該切断部位より後方側の袋の袋口とし、この袋口を開口して袋の内部に被充填物を充填し、前記袋口をシールすることを特徴とする無菌充填包装方法。Both side edges are sealed along the length direction and horizontal seal portions are formed at equal intervals, and the band-shaped connecting body in which the sealed bags are arranged in a line is unwound into a roll, After being introduced into the aseptic chamber, the vicinity of the rear side of the lateral seal portion is cut and separated into individual bags, and the cut portion is used as the bag mouth of the bag behind the cut portion, and the bag mouth is opened. And filling the inside of the bag with the material to be filled, and sealing the opening of the bag. 袋底がガセット折りされかつ周縁部がシールされて密閉された自立袋が同方向を向いて一列に連なる帯状連接体がロール状に巻かれ、各自立袋の袋口及び袋底は前記帯状連接体の幅方向両側に位置し、前記帯状連接体の袋口側にスぺーサーが前記帯状連接体とともに巻かれていることを特徴とする自立袋のロール体。A self-standing bag whose bottom is gusset-folded and whose peripheral edge is sealed and hermetically sealed is oriented in the same direction, and a band-shaped connecting body that is continuous in a row is wound in a roll shape. The bag mouth and the bag bottom of each self-standing bag are the band-shaped connecting members. A roll body for a self-standing bag, wherein a spacer is wound on the bag mouth side of the band-shaped connecting body together with the band-shaped connecting body at both sides in the width direction of the body.
JP2003056913A 2003-03-04 2003-03-04 Aseptic filling/packaging method, and rolled product of bag Withdrawn JP2004262537A (en)

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Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1876112A1 (en) * 2006-07-03 2008-01-09 FMC Technologies Italia S.p.A. Aseptic spoutless pouch and method for packaging food products
JP2008532859A (en) * 2005-03-09 2008-08-21 ウォーターウェルクス リミテッド Supply of packaged bags for filling equipment
JP2008532862A (en) * 2005-03-09 2008-08-21 ダブリューエフシーピー、エルエルシー Flexible bag filling, sealing and accessory insertion system
JP2009536905A (en) * 2006-05-12 2009-10-22 エコ、レーン、リサーチ、アンド、デベロップメント、アクティーゼルスカブ Transport unit and manufacturing method thereof
US7837386B2 (en) 2008-01-07 2010-11-23 MFC Technologies Italia S.p.A. Aseptic spoutless pouch and method for packaging food products
JP2014076848A (en) * 2012-10-12 2014-05-01 Sankyo System:Kk Packaging bag supply device
CN105600018A (en) * 2016-03-08 2016-05-25 昆山市品一自动化设备有限公司 Heat-seal packing machine
JP2018197127A (en) * 2017-05-24 2018-12-13 東洋自動機株式会社 Method and device for supplying bag filled with solid matter
WO2023048176A1 (en) * 2021-09-22 2023-03-30 ゼネラルパッカー株式会社 Bag feeding device and bag-feeding packaging machine provided with same
WO2023048175A1 (en) * 2021-09-22 2023-03-30 ゼネラルパッカー株式会社 Bag feed method using packaging bag continuous body

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008532859A (en) * 2005-03-09 2008-08-21 ウォーターウェルクス リミテッド Supply of packaged bags for filling equipment
JP2008532862A (en) * 2005-03-09 2008-08-21 ダブリューエフシーピー、エルエルシー Flexible bag filling, sealing and accessory insertion system
JP2009536905A (en) * 2006-05-12 2009-10-22 エコ、レーン、リサーチ、アンド、デベロップメント、アクティーゼルスカブ Transport unit and manufacturing method thereof
EP1876112A1 (en) * 2006-07-03 2008-01-09 FMC Technologies Italia S.p.A. Aseptic spoutless pouch and method for packaging food products
US7837386B2 (en) 2008-01-07 2010-11-23 MFC Technologies Italia S.p.A. Aseptic spoutless pouch and method for packaging food products
JP2014076848A (en) * 2012-10-12 2014-05-01 Sankyo System:Kk Packaging bag supply device
CN105600018A (en) * 2016-03-08 2016-05-25 昆山市品一自动化设备有限公司 Heat-seal packing machine
JP2018197127A (en) * 2017-05-24 2018-12-13 東洋自動機株式会社 Method and device for supplying bag filled with solid matter
WO2023048176A1 (en) * 2021-09-22 2023-03-30 ゼネラルパッカー株式会社 Bag feeding device and bag-feeding packaging machine provided with same
WO2023048175A1 (en) * 2021-09-22 2023-03-30 ゼネラルパッカー株式会社 Bag feed method using packaging bag continuous body

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